Photomechanical machine



NOV- l 1932. D. v. MAzzocco PHOTOMECHANICAL MACHINE Filed Aug. 2. 1930 7 Sheets-Sheet l I w. .M NM. vvv.. I a. Q N m H ,M nu. Frlll lll.. W m nd v N TV ...und IV A m. /v\\%\ m\\ Nw Nm m. mmm M f Jr HI Y f LK@ T n@ -if .IV, ww m m Sr wm A \\Q \N%\ A *n i.. f il. b i HHN w. u mw NNN u m n f N www mmm. M Nm. www m. um, ww m w ||Ih.|||||||.||l...l|||||||||.|l|l|| l. IIIUIHIHIHPI wmmllllmmlumlll mmmwwlnwlmmmmlhwhulmmm 1 i---. -i WL w .nim n Nb. fnv: u m@ 1. h W D 1 NN \N l ./\\L^/// \\v Nmv//w mh QN n WN. A/ lum F|,X\ l l I l I Il l l l l l IIT I llllll Il# I l l l l IIN/L f/ \\w www M. l, m m.. Rm. W .IWL nu QN. lWH m HE EH u. f HJ.. L: 1li! I ,Q Rw .QN NN m.

Nov. l, 1932,

D. v. MAzzocco 1,885,532

PHOTOMECHANICAL MACHINE Filed Aug. 2. 1930 7 Sheets-Sheet 2 .www

.; ATTORNEY:

' NOV. l, 1932. D, v MAZZOCCO 1,885,532

PHOTOMECHAN ICAL MACHINE Filed Aug. 2. 1930 7 Sheets-Sheet 3 INVENTOR SYM @6fm ATTORNEY 5' Nov l 1932.

D. v. MAzzocco 1,885,532

PHOTOMECHANICAL MACHINE Filed Aug. 2. 1930 7 Sheets-Sheet 4 www!HW@ hunmnmllmw .,.H S.

HHM A 33 13 'Lf nlMINIMUMmllmm.,

Nov. l, 1932.

D. V. MAZZOCCO APHO'IOMECHNICAL MACHINE Filed Aug. 2. 19.30

7 Sheets-Sheet 5 Hmmm 4 ATTORNEY J N0V- 1,1932 D. v. MAzzocCo 4 PHOTOMECHANICAL MACHINE Filed Aug. 2. 1930 '7 Sheets-Sheet `6 u? me ATTORNEYs Nov. l, 1932.

D. V. MAZZOCCO y PHOTOMECHANICAL MACHINE Filed Aug. 2. 1930 7 Sheets-Sheet 7 INVENTOR 7h72H/@v QJZ zr.

Y L@ w ATTORNEY 5 Patented Nov. l, 1932 UNTE STATES PATN'" OFFHC p DANTE V. MAZZOCCO, OF NEW YORK, N. Y., ASSIGNOR TO EUREKJS. PHOTO MECHANICAL EQUIPMENT, INC., OF NEW YORK, N. Y., A CORPORATION OF NEW YORK IPHOTOMECHANCAL MACHINE Application filed August 2, 1930. Serial No. 472,598.

This invention relates to photo-mechanical machines, i. e. machines for reproducing a design or image from a photographic plate onto a sensitized surface, and more particularlyvto a machine for repeating and properly spacing a design or image to be reproduced vfrom a photographic plate onto a sensitized surface. j

ln the present form of the' invention a machine of the form-of a photocomposing machine is shown. j

An object of the invention is to` produce a comparatively simple, e'cient and accurate machine of the character described which the relative,r movement? and 'setting of the photographic plate with respect to the sensitized surface may beefected without the necc'ssity of motive means, and in' which the machine may be easily-operated for rapidly and reliably producing the image from'the photographic plate onto the sensitizedv surface.

' Another object of theinventiOn is to produce a machine of accurate andeicient operation andfwlich may be' produced 'at a'relatively smalll'cost asvcoinpared t'o presentmachines capable of handling the 'same class of Work. i.

The invention 'consists finth novel"features, arrangements "and,x (':ombinatioris of parts embodied by way'of example,"in"the A apparatusjhereinafter described, as illustratmg a 'preferred form,4 of the invention, 'and the invention will be more particularly pointed out in the appended claims.

' Further and more vspecific object-s, features and advantages will more; clearly appear F 1g. 17 is a-'detall sectional View.

,from thedetailed description' give below taken in connection y with. the accompanying drawings which forma part of thisspecification.

In the drawings: y

Fig. 1v is a planview of the apparatus illustrating the present preferred form of the invention, and from which the vacuum frame hasbeen omitted for purposes of clarity,

' Fig. 2 is a front elevation of the major portion of the same shown in Fig. 1,

Fig. 3 is an end elevation of the same with certain parts removed for purposes of clarity,

Fig. 4 is an enlarged fragmentary view showing certain features of the apparatus in greater detail including the vacuum frame,

Fig. 5 is :i sectional view taken at 5-5 of Fig. lwith the parts on a somewhat larger Fig. 4 on' asimilar enlarged-scale, and servesv to illustrate the relative position of the vacuum' frame and photographic plate carried thereby relative to the sensitized surface carried by the table, in one of the relativey positions of the parts,l e

Fig. 1() is4 a sectional view taken at 10'-10 of'F ig. 4 on a somewhat enlarged scale,

Fig. 11 is a sectional view taken "at '1l-11 of-FigA on a similar scale,

Fig. 12 is a sectional view taken `at 12-*12A of Fig. l on an enlarged scale,

Fi". 13 is a similar view with the parts in aj ifferent position of illustration,

Fig.' 14 is a. sectional vview taken' at 14e-14 of Fig. 1f with the Aparts similarly enlarged,"

Fig. 15 is an enlarged View showin# the interiorly threaded sleeve member of igS. 12 and 13 in perspective and illustrating the means of Calibrating the same'for liner adjust-ments, f

Fig.. 16 is a detail perspective view, and

Referring to the drawings and more particularly to Figs. 1 and 2, the apparatus is suitably supported on legs 1, 2,-3 and 4.V To these legs are Vrigidly attached bysuitable means longitudinal rails 5, 6, and transverse rails 7- and 8; the rails 5 and 6 providing a track'for supporting a longitudinally movable carriage and the rails 7 and 8 providing a track for supporting a transversely movable carriage; the rails 6 and 8 each being provided with upwardly and inwardly converging guide surfaces and the rails 5 and 7 in'the. present embodiment being provided with flatl upper surfaces, In the present embodiment the legs 1, 2g 3 and 4 together with the rails 5, 6, 7 and 8 form what might be termed the supporting structure of the apparatus.

Se'lwltz'zed surface suppm't A sensitized surface, such for example as a zinc plate suitable coated for photographic purposes is adapted to be supported on the apparatus in the following manner. .Arms 9, 10, 11 and 12 (Fig. 1) are suitably rigidly attached to the respective corners of the sup.- porting structure above described and extend inwardly rigidly supporting from their 1nner ends a rigid table base 13 carrying a sensitizedzsurface table 14.which is provided with a substantially flat horizontal upper surface which is adaptedto support (Fig. 9) a member 15 which will be referred to Ior purposes. of convenience as a sensitized surface. The table 14 is so positioned vertical- Aly that it lies substantially above 'the upper surfaces of the rails 5,6, 7 and 8 audis spaced substantially inwardly thereof (Figs.- 2 and 3), the purposes of Which will be more apparent following.

.Uarrz'ages Carriages which will be designated in their entiretyA as 16 and 17 are supported respectively ,fromthe longitudinal and transverse tracks above described and are adapted to be freely moved in respectively longitudinal and transverse directions.

The carriage 16 is constructedand arranged as follows. An end member 18 of the carriage is provided .with Aa .wheel support formed with downwardly extending-'portions rotatably supporting thereon pairs of wheels 19, 20 and 2l, 22, which are provided with frictionless bearings s uch'for exampleasball bearings to` facilitatejree movement of the carriage` -The pairs of Wheels are positioned in bifurcated arrangement so that the inner surfaces of respective .pairs of wheels are positioned in true rolling engagement with the inclined guide surfaces of the rail 6. Studs 23 (only one of which is shown in Fig. 6) project downwardly from the endA 18 and a wheel carrier 24 is slidably positioned thereon and is resiliently held upwardly by means of compression springs suchas 25. Wheels such as 26 are suitably supported on spindles formed integral withthe member 24, are preferably journaled on ball bearings and are in resilient engagement WithA the under side of the rail 6. The wheels such as 26 are each in vertical alignment with: the pairs ofwheels 19 and 20 and 21 and 22. It will therefore be seen that the end 18 of the carriage is thus held. in such enUagement-wit-hthe 'rail that while. free sliding movement along the rail is. provided 4the member nevertheless rcstrictedto a straight line movement parallel to the axisof the rail 6.

The end member 27 is provided with downwardly extending portions for supporting the wheels 28 and 29 which are also of the frictionless type and which are supported on the top surface of the rail 5; and wheels such as 30 of a character similar to the wheels 26 are similarly resiliently held against the under surface of the rails 5', thereby serving to yieldably hold the wheels 28 against the upper surface-of the rail. A cross bar 31 is rigidly attached at its respective ends to the end members 18 and 2T. It is to be particularly noted that the cud members 18 and 2T are ofi'sct outwardly with respect to the rails 5 and 6 for the purpose of providing proper clearance for movement of the photographic plate and in order that the same might be positioned along the marginal edges of the table 14. A transverse shaft hanger 32 is rigidly secured at its respectively opposite.-

ends to the inner sides of the end members 18 and 27 and carries journaled therein a. torque shaft 33 provided at its respectively opposite ends with pinion ears 34 and 35 which are in respective mesh with the rack bars 36 and 37 supported respectively by brackets 38 and 39 attached to the rails 5 and 6. This arrangement provides for equalization of the ends 18 and. 27 of the carriage 16 in; their movement along their respective rails. It will therefore be seen that the carriage 16 is provided for. free sliding movement along its track in a direction parallel thereto, and by so doing the cross bar 31' always extends in a direction normal to its path of movement. The cross bar 31 1 and 5) carries rigidly secured to its inner face the rack bar 40, whose purposes will be more fully described in connection with the Asupport of the vacuum frame carrier- The other carriage 17 is constructed in a manner substantially identical with thecarriage 16, and accordingly will only be rcferred to briefly in order to designate its respective parts. The end member 41 is supported on its rail 8 in the-'same manner as above described in4 connection with the end member 18 and its rail 6. The other end member of the carriage 17 is designated as 42 and is supported on its rail 7 in the same manner as above described in connection with the end 27 and its rail 5. A crow member 43 similarly serves to connect the end members 41 and 42. Similarly a shaft hanger 44 provides for the support of the torque shaft 45 which carries at its respectively opposite ends spur gears 46 and 47 in engagement with respective rack bars 48 and 49 supported from the rails 7 and 8 in a manner similar to that heretofore described with respect to the rack bars`L 36 and 37. Accordingly, it will be seen that the carriage 17 is adapted for free sliding movement along its track in a direction parallel to the axis thereof andV so held in position that thc-cross bar 43 will always extendL at right angles to its direction of movement- The cross member L13 (F ig. carries attached to its inner face a rack oar 50 which col-responds to the rack oar l above described and which in conjunction therewith serves to support the vacuum frame carrier as will be apparent following.

Freni the foregoing it will be seen that the respective carriages are adapted for free lineal movement in directions always at 90 .me to the other. By the construction and disposition of the parts heretofore described the carriages are adaptedto be moved back and forth freely by hand and without any undue effort. This'is a feature of importance in thc ,present invention where provision is made for moving the photographic plate into approximately'its exact predetermined position by hand and without the necessity of the usual. motive means heretofore usually employed... Furtherxjnore itis to be noted at this time that the end member 27 Fig. 1) is offset tosuch an extent that the cross bar 43 may be moved outwardly beyond the rail (Fig. 6) and that the other end members of the earria es are ollset to such an extent that the eros: ar 31 may be moved into a position substantially over the rail 6.

u Negative frame carrier Referrinfr more particularly to Figs. 1, 4 and 9, a negative frame carrier will be designated in its entirety as 51 (Fig. l) This carrier, as will be seen more clearly with referen to FigsJi, 9, and 11, comprises two main parte which will be designated as 52 and 53. The part 52 is su ported jointly from the carriages 16 and 1 by means of the wheels 54,55, 56 and. 57; it being noted that the wheels 54.--55 and 56-57 are supported in rolling engagement on the respec- A tive rack hars and 50 which arc carried respectively by the carriage cross members 1 and 1-3-(Fig. l). Eachof the wheels 54, 55, 56 and 57 is supported from 10) a spindle stud such :as 58 which is screw threaded into the member 53 and which is provided with a lock nut to lock the stud in the desired radial adjustment. Each stud is provided with an eccentrically formed axle 59 for supporting its respective wheel; the provision of eccentrics on the studs providing for adjusting the carrier 51 with respect to the sensitized surface. The memberv52 is provided With a housing 60 which is rigidly attached thereto and which partially surrounds the cross bar 43 and racl-r bar 50 carried thereby. This housingr supports a grooved block 6l which is normally freely slid- :ible with respect to the bar 43 and which is supported by a threaded screw jack 62 freely rotatably mounted in the housing 60 and inthreaded engagement with the block 61. Jack screw 62 is provided with a hand f lever 63. Provision is thusmade for normally permitting free sliding movement of; the frame 52 longitudinally of the bar 43 while attaching the frame 52 to the bar 43 for movement therewith in a direction transverse to its axis. The jack screw 62 and its cooperating block 61 are adapted for moving the frame 52 and cross bar 43 toward and away from each other for the purposes to be hereafter more fully referred to.

As will be seen moreY clearly from Figs. 7, 8 and 9, the frames 52 and 53 are held together by a plurality of studs 64, 65, 66 and 67, the

arrangement and mode of operation of which.

will be best understood by reference to Fig. 9, which shows one of these studs as illustrative of the arrangement of each. The stud 64 is rigidly attached to the frame 53, as by threaded engagement, and paes through a vertical slot 68 arranged in the frame member 52 and the other end of the stud is thrcadedfor lock nuts designated as 69, between the under' face of which and the outer face of the member 52 is interposed a washer 70; the parts being so positioned and adjusted that vertical sliding movement is permitted between the members 52 and 53 while ment in a horizontal direction.

From an understanding of the above and by reference to Fig. 1 it will be seen ,that the carrier 51 is freeto be moved in a horizontal direction over the table 14 with reference to' the sensitized surface which the table is adapted to support. When, the carrier is moved in a longitudinal direction the carriage 16 is movable therewith and the carrier and carriage are movable with respect to the carriage 17; and conversely when the carrier 51 is moved in a transverse direction the carriage 17 is movable therewith and the carrier and carriage. 17 thus move relative to the carriage 16. Furthermore, when the carrier 51 is moved in a direction intermediate the longitudinal and transverse directions, such as in a diagonal direction, and when the carrier is adjusted for free movement with respect to parts and for suitably controlling the predetermined registration between the sensitized surface and photographic plate will now be fully described.

Adjustment lmeans and registration locking mechanism It Willbe understood that in the normal operation of the machine it is desired to move the photographic plate into a definite predetermined; position, and that upon the precipreventing movesion with which this positioning takes place depends the accuracy of the machine. This position is determined with respect to directions which extend at 90 to each other, and accordingly it is usually the custom to move the plate in different successive positions in one direction and then in a direction exactly 90 thereto. Accordingly, it is customary in operating the mechanism described herein to adjust the plate carrier first rigidly in one of these directions-and then move itin the other direction at 90 thereto'into its proper position. Accordingly the means-now to be described is provided for locking the carrier 5l to one of the cross bars`31 and 43 while permitting its movement relatively along the other of the bars 31 and 43, and when the desired position in that direction has been reached to accurately lock the carrier in registi-ation position. v

Referring moreparticularly to-Figs. 1 and 12, it will be seen that an internally screw threaded sleeve'71 surrounds-'the' bar 43 and rack bar securedthereto; the threads of the sleeve 71 being designated' as 7 2 (F ig. 15) The threads 72` are'pformed `for cooperative meshing engagement' with the threads 73 lformed on the rack bar 150', which are of screw threadediformatio'n in the present embodiment ofthev invention.v Inlorder to {ulfill their desired functions the threads- 72' and 7 3 preferably .have i gradually sloping sides suchl for# example-asvthe Acmetype thread. The sleevefissupported-from the member: 52by means'o the-housing 60 heretofore referredftoand'is so-supported therefrom as to-perniitrotation of. the sleeve 71 while'rtrictirrg-itagainst axial movement 505. This tconstruction Aissomizwhatfi'irther detailed inFig; 7, `from whicl'it-'will'be seen der 74 adapted- 'for engagementwithx a cooperating shoulder 75' ormedon the interior 'l of the sleeve 71;*'andurthr'thsplate 76 is attachedto oneen'djfacefoithe housing 60, which-together withthe shoulder-74 limits the movement of'V the-sleevel 71 inlan axial direction';=the plate 76'beihgprov'ided with (Fig. 15)* ab pini 77 adapted ffor cooperative registration in'pone offaiserie's of holessuch as 7 8-spaced equallyv in'thef adjacent `end face of the sleeve 71. In the present embodiment there are'eight of these' holes spaced equidistant around the sleeve, and since the pitch of the screw teeth inthe present embodiment is 1,4, Whenthe sleeveis rotated a radial distance equal to the distancefbetw'een the it being distinctly understood however that it is in .the contemplation of theinventiont that by varying'the pitchl of the threadsa-nd the distance between holes any desired common 'fraction or decimal fraction of increments of movement may be provided, as will bc obvious to those skilled in the art.

Referring to Fig. 7, a cam latch 79 is pivotally supported from the housing 60 by .-neans of a screw 80; and this latch is provided with a handle 81. The latch is so construc'zed and positioned that when moved into the position shown in Fig. 7 its inner face engages the adjacent end face of the sleeve 71 and forces it into positive locking engagement eflec'tedbetween one of the holes 78 then in register with the dowel pin 77, thereby serving to rigid-ly fix the sleeve 71 in its respective radial and axial positions. Y Referring to Figs. 1, 7 and 12 it will be seen that a device in general similar to that heretofore described is provided in cooperative relation with the cross bar of the carringe 16, and in order to avoid undue duplication, some of the major parts of this device are designated with the same numerals employed with reference to that heretofore described'and the suffix prime (')has been added to differentiate between the parts of the respective devices. For example a. housing 60 is attached to the member 52 of the carrier 51 Aand carries a. sleeve 71 similar to the sleeve 71, and constructed and disposed identically with that heretofore described.

, Instead of a-single jack screw 62 operated by the handle 68 (Fig. 12) which together` withits cooperating parts is provided for causing rclatlve movement of the frame 52 f` and har 43 toward and4 away from each other, Z' dual jack screw means are provided'for movinl the directionof tlieI-bar 43'andfgear rack i'ng'the frame 52 toward and away from'the cross bar 3 1; and accordingly this means lwillg` now be described with 'particular vreference that the housing 60s= provided 'with a shoulto'Figs. 1, 7, 8 and 14. Bosses such for eX -iu'n'pleas 82 .(Figs. 7 and 14) areformed integral with the frame 52 and rigidly sup ported therein are jack screwssuch as83.` Cooperativelythreaded jack screwheads 84 and 85 are in threaded engagement with said )ack screws and -adapted tobe rotated thereon to cause the said .heads to move inwardly and outwardly upon rotation. These headsV are provided'respectively with arms 86 and ST and said arms are attached together by a link 88 (Figs. 1 and 8) which is provided Vwith an adjustment 89 to vary the length of said link so as to adj ust said jack screw heads into proper alignment. Each of. said jack screws is provided with fianged portions such as 90 positioned on opposite sides of the carriage cross bar 31. It will therefore be seen that by moving the bar 88, the two jack screw heads 84 and 85 are rotated to cause said bar 31 to be moved-inwardly and outwardly with respect to said frame member 52 (F iv. 14). Aligning clamps 52 and' 52" are rigi 1yI secured to the frame52 andv are provided-With tration position; while only a single )ack screw is necessary on one sideof the frame since its function is to merely prevent the frame from the movenunt lengthwise of the bar such as 43. y

Mechanism for vertical movement of the inner caw-zeimem-bc.

lleferrin" more particularly to Figs. 1, 7, S and 10, it will be seen that pinion gear shafts 91 and 92 are journaled on the sides of the carrier frame member 52 respectively adjacent the cross bars 43 and 31. These shafts (Fig. 8) are eared together .bybevel gears 93 and 94 so that they may be rotated simultaneously. The shaft 91 carries vrigidly connected thereto the spur gears 9 5 and 96 which are in cooperative mesh with gear rack segments (Fig. 10) such as 97, which are rigidly fiired to the frame 53 of the carrier. Similarly the shaft 92 carries gears 98 and 99 in mesh with similar'gear segments rigidly attached to the frame 53. It will therefore be seen that by rotation of the shafts`91'and 92 the carrier member 53 ism'oved vertically.

Photographic plate'holder' The photographic plate suctionframe is diagrammatically illustrated as 100; (Fig. 9) and is adapted to carry a photographic plate designated as 101. Y'The frame 100 is pro-v vided with'afpneumat-ic 'sealing means sucli as the rubber strip' 102 which is adapted for engagement with the sensitized surface to form a'pneum'atic' seal, as is Livellunderstood in the art. 'Means is provided -fo'rv'the v'threepoint ball socket suspension of th frame 100 'from the carrier: 51 in order that franes'of different sizes and conditions may be properly positionedwth respect. to the apparatus. This means of support may take the formof three lugs (Fig. 1) such as 103, 104 and 105 which are provided with (Fig. 9) socket porions such as 106 adaptedA to provide a seat I for a ball end portion 107 carried on a bolt Suction and 'verified movement 'interlocking z control Referring to Figs. 7, 8 and'9, it will be seen that the shaft 91 is hollow and extends outwardly through a fixed journal 109 (Fig. 7). The outer end of the shaft 91 is suitably secured to a valve head 110 in such manner as to be rotated thereby and therewith. A cooperating valve member 111 is pivotally supported on the valve head, being held in operative relation thereto by suitable means such as the screw 112. Valve head 110 has a passage 113 which is adapted to be placed in register with a cooperating opening 114 mmad in the valve head 111 and a suitable suction means is connected thereto by means or" a flexible tube 115. It will therefore be seen that when the parts are in register as shown in Fig. 7 the tube 115 and openings 114, 113 and hollow shaft 91 form a continuous conduit. The shaft 91 is connected at its outer end to the flexible tube 116 (Fig. 9) which is in operative communication with the vacuum frame 100; and accordingly'when the parts are in theposition shown infFig. 7 thel vacuum frame 100 is connected to a; suitable source of suction. Referring; to Figs. 7, 16 and 17 it will be'seen that thevalve part 111 is provided with an arcuate slot1'17 Ito' provide for a limited movement of-:a` stud' 118 which is rigidly attached to the valve' head 110; a compression spring 119 being provided to hold the'adjacentfaces'of the valve head and its coo rating member in intimate and substantially 'a1r-tighti`con`- tact. The openings 113 and 114 are so'formed and positioned (I ig. 17) that when the parts are moved as indicated in'Fig 17 said openings are out of register and accordingly communication is prevented between the tube and the opening 113; while with the valve in the position shown in Fig. 7 cmmunicai tion is open between the said suction'conduit means. The valve-member 111 is provided with a handle 120'and carries anengagingpin 121 which isada ted 'for engagement with a bell 'cranlc 122 (Fig. 16') 'pivotal-lyattached to bifurcatedflargs 123 formedjintecral with the valvehead 1'10- The'loiy'e'end 'of the bell -crank 12.2: is 4:adaptedt be' brought into and out of engagement withabutmeiits 12etandl 125 formed 'integrally on thefixed journal -109.- The constructionzof the parts justl described i's such thatwiththe handle 120 in position shown in Figi 16 bell crank 122 locks the valve head 113x from movement with' respect to the journal'119 and thereby prevents rotation ofthe shaft 91 or vertical movement o f the carrier 51 which is connect- 'ilo ing the lower end of the bell crank froxnthe abutments 124'and 125. .During this moveof the vacuum frame.

ment'of the handle 120, however, and beforethe bell crank has become disengaged from its cooperating abut-ments, the ports 113 and 114 have been moved into engagement, as shown in Fig. 7. It will therefore be seen that while suction is applied to the vacuum f rame the vacuum frame may not be moved from its predetermined position of engagement with thesensitized surface. Furthermore the means for opening and closing the suction supplied to the suction frame is by means of a sliding valve, the operation of which provides an easy means of breaking the suction, sincein Athis*.particular type of valve it is much easier to openand close with suction applied than is the usual type of valve. It

will be readily appreciated that by providing an interlocking means of this nature various advantages are procured, among which is the impossibilityof aceidentallymoving the sur.- ion frame vertically by -meansof the handle 120l before such movement of the handle-first shuts offthe vaca-mn supply, insuring that when the movement of the suction frame -is desired and before-such movement is actually effected, the vacuum willalways be shut ofi', a unitary: control means thus being provided for themntrol of the vacuum or suction su pp'ly and .for eiectiag-the vertical. movement This feature of the inventionhasbeen found to be of wnsiderable advantage over .mechanisms heretofore emlgyed.`4 'Hl 1s usually 'customary in 'the openatmn 'of vacuum frames, pro-vision is made for attfching thereto a vacuum gauge (not shown) and .ineorder 13o-interconnect suc-h a gauge to thesuction frame (Fig. 4) a tube 126 .1s prqvfided. f I t y of the apparatus'zheretoforo described-will now :'be given with reference to one mannerof its use; and; from this it will be 'clearly understood and .appreciated by thoseslzill'ed in the-art how the-invention may be employed in allot fits .useful aspects. Ityill be assumed in 'this operation that a sensitized fsuriaoesuch -as 1'5 (Fi-g. '9) has beenplaced on-the table 14 and that-a photographic-plate holder or trame, which maybe of the. character described lor otherwise',; :is supported -on the fcarrier 51 and that it is desired to Astep the photographic ,plate, which may be .anegativd to various predetermined positions over the sensitized :surface to thereby successfully yproduce photographic reproductions of an image or unitary design carried on said plat-e on thesensi-tized surface. It will be understood iin this .connection that .in accordance with usual customs'in machines of -'t his character protecting curtains or screensare provided, which have been omittedfrom the resen'tlydescribed apparatus for jpurposes of clarity, and since their .use

well understood by those skilled in the art, which are suitably attached to the mechanism so as to protect the sensitized surface-from extraneous light on portions of the sensitized surface other than that in register with the plate. It will be assumed that the plate is of such size and the image carried thereon of such a character that the predetermined registration positions are 15 1/64, 30 1/64", and 45 1/64 in a direction longitudinally of l the apparatus and that the predetermined. positions of registration in the transverse direction are 6 3/64, 12 3/64 and 18 3/64".

The handle 120 is moved toithe position' shown 1) in which position the carrier 51 is in its upper position and is locked in such position by means of the 4bell crank 122 and its cooperating locking abutmentsand in which .posi-tion the vacuum or suction source is shut off. The photographic plate holder is then in suitable position on the carrier -51 and the handles 81 and 81 are moved so -as to unlock the sleeves 71 afnd 71 and alsorthe handle 63 and the l-ink.88 are moved in an anti-clockwise direction tofree the rack bars 40 and 50 from engagement-'with the internal screw threads of the sleeves 71 and'71", and at the same time to release the carrier 5l for free :movement relativeto -the cross bars'31 and 43 of the two carriages. This relative position of the members will be best understoodffrom reference to Figs. 11-and 12. The carrier 51 is now moved to such a position that the index finger 129 is brought into approximate ,register with the 6 mark on the scale '13,()wl1ich is rigidlysecured tothe cross bar 31 off the carriage 16. The sleeve 71 is now rotated until its properly calibrated index mark 3/64 is in registerwithfa suitable index mark 'carried on the plate-adjacent 31@ thereto, or .in any other suitable manner. The lever-81'. is then rotated in a, clockwise direction to .rigidly-lock the sleeve 71 against axial rotation. The link 88 is -then moved in' a direction such that the jack screw heads (Figs. 8 and 121) 84 and 85 will be rotated in a clockwise direction which will cause the said heads lto move inwardly on their respectivejack screws and will thereby move the screw .threaded rackibar l1,0.into intimate engagement withN the cooperating internal screw threads ofthe sleeve 71', which will effeet therelative movement between the carrier 51 and carriage 16 in a direction lengthirise of the cross .bar 31, to thereby move the carriage 3.1 in to its accurate predetermined position of .registration and thereafter lock it rigidly in such position. The parallel clamps 52 and 52 preferably simultaneously come into intimate clamping contact with the bar 31 to insure a parallel position between the carrier 51 and carriage 16. The slight flexibility of the bar 31 provides for a slight flexure and therefore the screw threads should .seat a minute time interval ICY) before the clamps come into their fiual locking position. The carrier 51 is now rigidly locked in definite parallel alignmentwith the carriage 16 in its first position with respect to said carriage and is now adapted to be moved with respect to the carriage 17 into the first position on carriage 17.

The sleeve 7l is now rotate( :so that th calibrated mark thereon corresponding to 1/64 is adjacent a suitable index poinier and the sleeve is locked in that position by mea-nso the handle 81 Fig. 1). The carrier 51 together with the carriage 16l to which it is' locked arethen moved to thcleft until a suitable index pointer such as 19.? cames into approximate register with the numeral on the scale 128 which is rigidly secured' to'thezcrossbar 43. At thisitimc thecoazse adjustment for this position=l1as been-:completed and-'there now remains to be made the finefadjustment representing the last increment of distance; "For this-.last increment.- of movement,representing-the fine -adjnstnz mentdthe cooperatingV engagement:-- of"tlic' screw threaded rack bar and the-internal' :crw't-hrcads ofI the sleeves 71 are=utilized- 'l`o ell'eetthis the han'dlc' is rota d vin clockwiscdirection from'the positione shown Fig.' 12 ttf-that shoivn" in Fig. .'13= thereby causing-the sleeve ZI'and thef rackbar''to mo'v'e into su'ch.; intimate engagenient that the respectiveteeth` of tlietwwmembers are drawn' into' meshing engagementf.I I Duefto' the Widefanffle of the teeth, 'the teeth' of one. of the 'members will be interposed between the teeth'o the other* nicm'berand the incliner; on the side pfftlxeteth' will- 'ca use a zrelative aiial movement b'cti'veen4 the t w0 membcrsfto thereby `-'e'fi`ect 1 'tl'ielast" increment of 'nieve-` ment, andatfthe 'end 'of' said; movement to lock"the't`wo membersfi'nto 'an'absolutx and accurate lpiisition of )predetermined 'regislzrw1 tion`5"`It will be recalled in this '.conne'cn' en tl'iat 'f the" "sleefve'j is" j locked" 'a gainst gula-1 nl oveinentg'as lieret-oforeprovigled .j Th'e' regl ilstiation posit-i'cxr'of 15 l/'elff'reltive to'the carriafe l'l'fis'now effected and theV carrier 51 ifs'frigidly locked te the ccssbarflf'of he i 'At this v'tune-the photographic' lplate' jhas been' brought into' its 'first desiredf'pos'ftion of registrati(in' withlrespect 'to these'nsitized sur'- face i'nivhi'ch it i'srigidly' locked and through the intermediary of the carrier-ltbc c arriages 16":'nd 1'( have alsobeewpositively locked against movement.A The' firstexpol sure' is now made; and thereafter thefcarrier 51-is unlocked' from 'ene or the other-'ofthe carriages, preferably 'the carriagel 17,. and carrier '511s moved-lengthwise of the criss bar'43v in' the manner dcscribcdqabove' into the "successive positions of registration v30 '1/64 and 45 1/64,'in each of which positions the carrier 'is'locked and the' desiredcxp'o- Suresfare made. Thereafter the carrier-'51 'is left in locked engagement with'thc carriage 17 and is released from the carriage 16 and the'carricr is likewise stepped into position for its next series of exposures by being brought into desired 4registration position with the mark 12 8/64'on the scale 128; and

the process is repeated in a manner well un-v ef derratecd by those slnlled 1n the art untll all of' the desired predetermined positions of registration have been effected and the dcsrired exposures have been made.

The carriages 16 and 17 are movable along their respective tracks with the greatest of ease and it has been found that the placing of the I :hotographic plate in its registration positicns in the manner above described is attained with the greatest-ease and rapidity.' The 'desired functioning of the 'machine is attained by mechanism which is extremelyA simlple 1n its construction and operation yet provides a high degree of accuracy and speedo operation.

1- Hav'ing thus described my invention with particularity with reference to' its 'preferred form; it-wll be obviousto thoseskilledin the art, after understandin my invention'that other changes and modifir therein: =without` departing -from the-spirit and .fscope of myinvention; and' 'Izainiin the appended claims to' cover- :such ichaiig's and modifications as are within the' scopeiof theinvention. f'- t i f t 1.` In a machine of the character described the combination' offa bed frame comprising a''lono'itdinal' rail and f 'a' transverse rail formed on tu-'o-sides thereof, each of Said rails having inclined guide: surfaces and a second longitudinal railand a second transverse rail= formed respectively on the? zotherv two sides of said lied frame, alirs't carriage supported o'n'said' longitudinal rails as trackand hav'J ingfacross': bar, :vsecond carriageg supported' on said transverse railsas' atrack nd having'a cross'. bar; said Ycarriage'heilig? provided respectively witlr lroller meansadjacent the outer-endsfthereof adapted for rolling engagement onIsaid rails with`-the roller meansengaging said inclined'ghidelsurfaoes being of biircated'arrangment and serving to main tain the respective paths o'f movement' of said bars '.ionewith -respec't'to the :other and to hold said bars in such relation to each other, an d incans'- for carrying a photographic plate freely movable longitndinally of. either Aof sai d bars while rigidly secured to and movable with the other of said bars.` i

2. IIn 1a.' machine. of the character .described the combination of a bed frame comprising a longitudinal rail and a transverse-rail-formed on two sides thereof, each oisaid rails-having inclined guide surfaces, and a second *l0ngi tu'dinal rail' and fa second transverse rail 'formed 'respectively on the ther two sides of said bed: fram'e,'a firstcarriagesupportedcn cations may be made' spectively with roller means adjacent the outer ends thereof adapted for rolling engagementon said rails with the roller means engaging said inclined guide surfaces being of bifurcatcd arrangement and serving to maintain the respective paths of movement of.

said bars 90 one with respect to the other and to hold said bars in such relation to each other, and means for carrying a photogra phc plate supported jointly b v said bars and freel ly movable longitudinally of either of said bars while rigidly secured to and movable with the other of said bars.

3. In a machine of the character' described the combination of a. bed frame comprising longitudinal track means and transverse track means7 a first carriage and a second arriage supported in cross wise relationship on said respective track means and adapted respectively for relative longitudinal and transverse movement, said carriages being provided respectively with track means for supporting a photographic plate carrier. said carrier, roller means in rolling engagement with said carrier track mea-ns for permitting free sliding movement between vsaid carrier and carriages.

4. In a machine of the character described the combination of longitudinal and transverse track. a transverse vcarriage and a longitudinal carriage supported respectively by said tracks and located in di'erent planes substantially parallel one tothe other, said carriages being positioned incross wise relation one to'the other and being adapted for free relative independent longitudinal and transverse movement respectively, a photographic plate carrier having two adjacent sides-lying adjacent the portionsof said carriages forming an included angle'between said carriages and supported jointly from said carriages for free movement selectively relative to said carriagcs, and means for selectively rigidly securing said carrier to respective carriages in definite predetermined position.

5. In a machine of the character described the combination of longitudinal and transvexsc tracks, a table for supportingr a sensitized surface, a transverse carriage and a longitudinal carriage supported respectively by said tracks and located in different planes substantially parallel one to the other and in different planes from but substantially parallel to said table, said carriages being posi tioned in cross wise. relation one to the other and being adapted for free relative independent longitudinal and transverse movement 'respectively, a photographic plate carrier having two adjacent sides lying adjacent the portions of said carriages forming an ineluded angle between said carriages and supported jointly from said carriages for free. movement selectively relative to respective carriages, and means for selectively rigidly securing said carrier to respective carriages in defini-tc predetermined position.

6. In a machine of the character described the combination of longitudinal and transverse tracks, a transverse carriage and a longitudinal carriage suppported respectively by said tracks, said carriages being adapted for free relatively independent longitudinal and transverse movement respectively, a photographic plate carrier supported jointly by said carriages and in the form of an open sided frame comprising portions extending respectively in close proximity to adjacent portions of said carriages and supported thereby, said open sided 'carrier providing means for accommodating photographic plates of varyingsizes and said carrier being adapted for free movement selectively relative to respective carriages, and means for selectively rigidly securing said carrier to said carriages in different predetermined positions.

7. In a machine of the character described the combination of carriage means comprising two carriages extending transversely one to the other and each freely movable independently of theI other, means supported from said carriage means in guided and guiding engagement with and movable with respect to each of said carriages and adapted to be selectively rigidly secured to respective of said carriages independently in predetermined position relative to said respective carriages, and adapted when secured to one carriage to be moved therewith and relative to the other of said carriages while preventing movement of the said other carriages.

8. In a machine of the character described the combination of two' carriages movable respectively in relative transverse directions independently one of the other, a photographic plate carrier supported 'ointly by said carriages and adapted to freely slidably moved along each respective carriage in paths of right angles to each other for effecting coarse adjustments of said carrier, combined registration locking and tine adjustment means comprising two engageable toothed members one of which is in the form of a rack and the other of which is rotatable and is adapted at various angle settings to provide a fine adjustment of movement and a positive registration lock, one of said toothed members being carried by and secured to one of said carriages and the other being carried by and secured to said carrier.

9. In a machine of the character described the combination of two carriages movable respectively in relative transverse directions independently one of the other, said carriages each being provided Withva track for supporting a photographic plate carrier, a photographic plate carrier supported jointly by said carriages on said tracks and adapted to be freely slidably moved along each respective carriage in paths of right angles to each other for effecting coarse adjustments of said carrier, combined registration locking and fine adjustment means comprising two ergageablc tcohed members one of which is in the form of a rack and the other of which is rotatable and is adapted at various angle setting to provide a fine adjustment oi n1ovement and a positive registration lock, one of said toothed members being carried by and secured to one of said carriages and the other being carried by and secured to said carrier.

10. In a machine of the character described the combination of a photographic plate carrier, a carriage for said carrier, said carriage being adapted for movement together with said carrier and said carrier and carriage being adapted for relative movement one with respect to the other, an elongated toothed member of rack format-ion attached to and carried by and extending in a direction transverse to the direction of movement of said carriage, a rotatable adjustable toothed member attached to and carried by said carrier and adapted for relative movement into and out of mesh with said elongated toothed member, means for locking said rotatable member in any predetermined position of angular setting, and means for causing said relative movement between said two toothed members for bringing them into registrable mesh,

, the toothed formation of said cooperating r0- tatable and longitudinal members being such that said relative movement will move said carrier the last increment of movement and into predetermined position and simultaneously lock said carrier in a desired registration position.

11. In a machine of the character described the combination of a photographic plate carrier, a carriage for said carrier, said carriage being adapted for movement together with said carrier and said carrier and carriage being adapted for relative movement one with respect to the other, an elongated screw thread rack attached to and carried by and extendingr in a direction transverse to the direction of movement of said carriage, a rotatable adjustable sleeve attached to said carrier and having internal screw threads cooperatively formed -to mesh with the threads of said rack surrounding said rack and movable into and out of mesh therewith, means for locking said rotatable member in any predetermined position of angular setting, and mea ns for causingT said relative movement between said rack and sleeve, the thread formation of said cooperating rack and sleeve being such that said relative movement will move said carrier the last incre-ment of movement and into predetermined position and simultaneously lock said carrier in a'desired registration position. i

12. In a machine of the character described the combination of a support for a-photographic plate carrier7 means for providing free slidable movement of said carrier with respect to said support7 a rackbar attached'to said support and a sleeve surrounding said bar and rotatably supported from said carrier,

said bar and'sleeve being provided respe c.

ing each o -saidi carria es "independently therefromra' fphotograp ic'"p1a'tef learrie'r mounted on' saidftwoY carriagesandi movable relative -to said carriages l'ongitudinal-lyE and transversely in af'hoi'izon'tal'plane and 'serving to support aphotogra" hicfplatframe, and means for fverticallyacpijustingl said car`- rier relativeto rsaid carriages. g 1 l 514.' In a machine of the characterklescribe'd the combinationof two carriagesadapted' for respective ylongitudinal and. transverse movement in horizontal plaiiesf-fa.J photographic platei carrierfmountedon' said two; carriages and'movable'lon `tudinally-andtansversely in a. horizontal p ane, rollers supporting said carrier upon said carriages; 'adjustable eccen` trio means for settir 4-saidfrollers -to adjust the plane of said-1 carrier-:witlirespctto said carriages,z aA photo aphiplate'ffframe, 'and means for -vertica y adjustingfsad carrier relative to-said-carriages. auf -w'fi 1f .15. -In a machine of the character described the combination of a supporting. structure, a sensitizedsurface table, a first andra second carriagesupported fromv said structurefor respective movement in'relativelytransvers directions, a photographio plate carriersup= ported: by said carriages jointly.l and Aadapted to be manually freely slidably movedfinrelah. tivelyy transverse directions, ,aephotographic plate. frame supported* from said4 carrier and meansfor moving saidif'rame vertically with respect tosaid; table in planes substantially parallel thereto.. f 1 E i 16. In a machine/of the character described the combination of jaztable .for supporting a sensitized surface, a carrier, a photographic plate', means formovin g said carrier in longitudinal and transverse directions respectively' and forpositioning said carrier at a desired ment in horizontali -planes, a| frame' fsupport- JOO ilo

iis

lao

predetermined point of registration relative to said sensitized surface, a photographic plate vacuum frame supported on said carrier, means for moving said suction frame vertically away from and into contact with said sensitized surface, suction means for said suction frame, means for controlling the suction to said suction frame and means for interconnecting said suction control means and said vertical movement means to prevent the vertical movement of said suction frame while suction is applied to said frame.

17. In a machine of. the character described the combination of a table for supporting a sensitized surface, a carrier, a photographic plate, means for moving said carrier in longitudinalt and: transverse directions respectivelyandz for positioning said? carrier at adesired. predetermined point of registration relativeto-said sensitized surface, a photographic plate vacuum frame supported: on said carrier-7 meansfor moving;` said, suction frame awa-y from and: into-contact with said sensitized-.surface5 suction means for said suction irame,;means for controlling the suction to said: suction. frame-and means for intercom;- noeting saidv suction control means and said verticaL movement meansto prevent the vertical-l movement of said suction frame. while suction' is applied to sa-idi frame, sai-d means for controlling, the' suction-z to.v said.: suction frame. comprising a sliding va-Lve adaptedto open and close suction.- 'to said vacuum frame im predetermined: timed: relation with. the vertical; movementof said frame..

18s f Ivn-amaehifnef of thercharacter described the' combination. of an open sided' photo graphie. plate. carrierl adapted' to vsupport photographicA plate frames-oi varying si'zes', a2photographicplateA firamma sensitized sun faceftable adaptedfto: support` a; sensitizedsur facet with respecti to which,I a' photographic plateris adapted? tofbe-movedl inaccurate par-A allel relation-r three pointl suspensionzmeans carried jointly` bysafid' photographic plate frame and said carrier: and'. adapted tov pro'- viidiefort photographie. plates: of vanyingsizesin.proper'parallelrelation-with respect to: sairlf sensitizedi surface.

19. Inazmachine @'f'tli'e characterdescribed' having a carrier' for a photographic plate adaptedfor free: sliding'movementI relative` to\ arzsensitized surace'- thecombination oli, a rail. hav-ing. inelfmedi guide surfaces, bifrcated; roller 'means engaging said guidesurfaces; :mdf servingto= su pport a movable carriaige therefrom; resilient means -for holdingsad rollerl means. in intimate engagement with said inclined surfaces to thereby prevent said carriagefrom movingl outof' alignment rel-ativefto: its predetermined path of.' movement.K

In. testimony whereof I: have signed my nameto.this specifica-tion;

DANTE. V. MAZZOGCO, 

